Subjects: Geosciences >> Geography submitted time 2024-03-01 Cooperative journals: 《干旱区研究》
Abstract： Ecological assets refer to ecological systems that provide benefits and services to human beings.Assessing changes in ecological assets can objectively reveal the effectiveness of ecological protection efforts.Situated in the transition area between the Qinghai-Tibet Plateau and the Loess Plateau, the Huangshui RiverBasin has a fragile and sensitive ecological environment. It also has the highest population density andsocioeconomic intensity in the region, making it the key area for implementing ecological protection policies andprojects. By calculating the stock and discharge of ecological assets in the Huangshui River Basin, wecomprehensively analyze the spatiotemporal dynamic changes in ecological assets in the watershed, investigatethe driving factors behind the gains and losses in ecological assets using the geographical detectors model, andexplore the ecological protection benefits in combination with different ecological protection measures. Theresults are as follows: (1) The comprehensive index of ecological assets in the Huangshui River Basin in 2020was 30.98, showing a distribution pattern of low ecological assets in the southeast plain and high ecologicalassets in the northwest mountains. From 2000 to 2020, the comprehensive index of ecological assets increased by6.71%, indicating an overall improvement in the quality of ecological assets. (2) In 2020, the ecological assetflow value of the Huangshui River Basin was approximately 107.374 billion yuan, with the regulation servicevalue accounting for 69.50%. Over the past 20 years, ecological assets have increased by 83.116 billion yuan, ofwhich 57.123 billion yuan was attributed to regulating services. The regulation of grassland ecological resourcesprimarily contributed to the flow value, which is also influenced by the stock quality of ecological assets. (3)There was a notable spatial difference in the driving influence of ecological asset profit and loss in the HuangshuiRiver Basin. Socioeconomic factors (average contribution of 12.95%) impacted ecological asset profit and lossmore than natural factors (average contribution of 10.54%). (4) Ecological assets in the Huangshui River Basinhave shown steady improvement, and considerable success has been achieved in ecological protection andrestoration. However, the region faces challenges due to the imbalance between natural background restrictionsand economic development, leading to significant spatial differentiation in ecological assets and continuedpressure on local ecological protection. This study is of great significance for understanding the ecological statusof the Huangshui River Basin and guiding the protection of its ecological assets. Overall, the ecological assets ofthe Huangshui River Basin have improved steadily.
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